The header file for the UNIX system dependent routines.
Copyright (C) 1991, 1992 Ian Lance Taylor
This file is part of the Taylor UUCP package.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
The author of the program may be contacted at ian@airs.com or
c/o AIRS, P.O. Box 520, Waltham, MA 02254.
Revision 1.53 1992/03/30 15:29:58 ian
Added HAVE_SVR4_LOCKFILES
Revision 1.52 1992/03/16 01:23:08 ian
Make blocking writes optional
Revision 1.51 1992/03/15 07:15:42 ian
T. William Wells: don't use unblocked writes
Revision 1.50 1992/03/15 04:51:17 ian
Keep an array of signals we've received rather than a single variable
Revision 1.49 1992/03/15 01:54:46 ian
All execs are now done in isspawn, all waits are done in iswait
Revision 1.48 1992/03/12 21:52:21 ian
Corrected readdir prototype
Revision 1.47 1992/03/11 22:06:37 ian
Marty Shannon: added max-uuxqts command
Revision 1.46 1992/03/11 02:09:57 ian
Franc,ois Pinard: retry fork several times before giving up
Revision 1.45 1992/03/11 00:18:50 ian
Save temporary file if file send fails
Revision 1.44 1992/03/10 17:39:57 ian
Some systems don't permit both <termios.h> and <sys/ioctl.h> to be included
Revision 1.43 1992/03/09 22:07:36 ian
Wait for terminal output to drain at various points
Revision 1.42 1992/03/03 21:01:20 ian
Use strict timeout in fsserial_read, eliminate all race conditions
Revision 1.41 1992/03/02 04:53:07 ian
Marc Unangst: added HAVE_SCO_LOCKFILES configuration parameter
Revision 1.40 1992/02/29 01:06:59 ian
Chip Salzenberg: recheck file permissions before sending
Revision 1.39 1992/02/28 05:06:15 ian
T. William Wells: fsysdep_catch must be a macro
Revision 1.38 1992/02/27 05:40:54 ian
T. William Wells: detach from controlling terminal, handle signals safely
Revision 1.37 1992/02/23 03:26:51 ian
Overhaul to use automatic configure shell script
Revision 1.36 1992/02/20 04:18:59 ian
Revision 1.35 1992/02/09 05:10:50 ian
Added HAVE_MKDIR configuration parameter and mkdir emulation
Revision 1.34 1992/02/09 03:14:48 ian
Added HAVE_OLD_DIRECTORIES for systems without readdir routines
Revision 1.33 1992/02/09 02:41:58 ian
Added HAVE_DUP2 configuration parameter and dup2 emulation function
Revision 1.32 1992/02/08 23:34:41 ian
If we have neither getcwd nor getwd, fork /bin/pwd to get the cwd
Revision 1.31 1992/02/08 20:02:36 ian
Added HAVE_SETRET configuration option for systems without setjmp
Revision 1.30 1992/02/08 03:54:18 ian
Include <string.h> only in <uucp.h>, added 1992 copyright
Revision 1.29 1992/01/15 21:06:11 ian
Mike Park: some systems can't include <sys/time.h> and <time.h> together
Revision 1.28 1992/01/15 19:40:35 ian
Mike Park: handle HAVE_UNION_WAIT correctly and completely
Revision 1.27 1992/01/15 07:06:29 ian
Set configuration directory in Makefile rather than sysdep.h
Revision 1.26 1992/01/14 04:18:47 ian
Chip Salzenberg: added HAVE_USLEEP configuration parameter
Revision 1.25 1992/01/13 19:59:29 ian
Define LIBDIR in Makefile rather than in sysh.unx
Revision 1.24 1992/01/13 05:55:59 ian
Touched up a few comments
Revision 1.23 1992/01/13 05:53:04 ian
Mike Park: added HAVE_WAITPID and HAVE_WAIT4 configuration parameters
Revision 1.22 1992/01/11 17:11:11 ian
Hannu Strang: avoid compiler bug by not using -> in address constant
Revision 1.21 1992/01/04 21:43:24 ian
Chip Salzenberg: added ALLOW_FILENAME_ARGUMENTS to permit them
Revision 1.20 1991/12/29 00:55:23 ian
Monty Solomon: added HAVE_UNION_WAIT
Revision 1.19 1991/12/28 17:08:47 ian
John Theus: offer HAVE_GETWD as an alternative to using getcwd
Revision 1.18 1991/12/28 07:01:15 ian
Added HAVE_FTIME configuration option
Revision 1.17 1991/12/22 22:14:19 ian
Monty Solomon: added HAVE_UNISTD_H configuration parameter
Revision 1.16 1991/12/19 04:25:57 ian
Terry Gardner: configuration parameter to not use both NONBLOCK and NDELAY
Revision 1.15 1991/12/17 07:09:58 ian
Record statistics in fractions of a second
Revision 1.14 1991/12/11 04:21:37 ian
Arne Ludwig: merge in Arne Ludwig's patches for V2 and BNU style logging
Revision 1.13 1991/12/09 19:07:07 ian
Richard Todd: add HAVE_V2_LOCKFILES--binary number in lock file
Revision 1.12 1991/11/30 23:28:26 ian
Marty Shannon: some systems need a fake version of the rename system call
Revision 1.11 1991/11/26 01:45:42 ian
Marty Shannon: configuration option to not include <sys/wait.h>
Revision 1.10 1991/11/24 04:15:13 ian
Removed extraneous comment left by last revision
Revision 1.9 1991/11/21 21:49:38 ian
Brian Campbell: define all macros to avoid compiler warnings
Revision 1.8 1991/11/21 21:07:46 ian
Brian Campbell: offer ltrunc as an alternative to ftruncate
Revision 1.7 1991/11/10 19:24:22 ian
Added pffile protocol entry point for file level control
Revision 1.6 1991/11/08 22:52:34 ian
Brian Campbell: only include <sys/time.h> and <sys/ioctl.h> when needed
Revision 1.5 1991/11/08 22:11:45 ian
Brian Campbell: allow sigsetjmp as configuration option
Revision 1.4 1991/11/07 19:32:28 ian
Chip Salzenberg: allow LOCKDIR, and check that locking process exists
Revision 1.3 1991/09/19 16:15:58 ian
Chip Salzenberg: configuration option for permitting execution via sh
Revision 1.2 1991/09/19 03:06:04 ian
Chip Salzenberg: put BNU temporary files in system's directory
Revision 1.1 1991/09/10 19:45:50 ian
/* We're might redefine fsysdep_catch, so make sure we've gotten the
/* Make sure the defines do not conflict. These are in this file
because they are Unix dependent. */
#if HAVE_V2_LOCKFILES + HAVE_BNU_LOCKFILES + HAVE_SCO_LOCKFILES + HAVE_SVR4_LOCKFILES != 1
#error LOCKFILES define not set or duplicated
/* SCO and SVR4 lockfiles are basically just like BNU lockfiles. */
#if HAVE_SCO_LOCKFILES || HAVE_SVR4_LOCKFILES
#undef HAVE_BNU_LOCKFILES
#define HAVE_BNU_LOCKFILES 1
#if HAVE_BSD_TTY + HAVE_SYSV_TERMIO + HAVE_POSIX_TERMIOS != 1
#error Terminal driver define not set or duplicated
#if SPOOLDIR_V2 + SPOOLDIR_BSD42 + SPOOLDIR_BSD43 + SPOOLDIR_BNU + SPOOLDIR_ULTRIX + SPOOLDIR_TAYLOR != 1
#error Spool directory define not set or duplicated
/* On Unix, binary files are the same as text files. */
/* If we have sigaction, we can force system calls to not be
#undef HAVE_RESTARTABLE_SYSCALLS
#define HAVE_RESTARTABLE_SYSCALLS 0
/* If we have sigvec and SV_INTERRUPT is defined, we can force system
calls to not be restarted (signal.h is included by uucp.h before
this point, so SV_INTERRUPT will be defined by now if it it ever
#undef HAVE_RESTARTABLE_SYSCALLS
#define HAVE_RESTARTABLE_SYSCALLS 0
/* We don't handle sigset in combination with restartable system
calls, so we check for it although this combination will never
#if ! HAVE_SIGACTION && ! HAVE_SIGVEC && HAVE_SIGSET
#if HAVE_RESTARTABLE_SYSCALLS
/* If we don't have restartable system calls, we can ignore
fsysdep_catch, usysdep_start_catch and usysdep_end_catch.
Otherwise fsysdep_catch has to do a setjmp. */
#if ! HAVE_RESTARTABLE_SYSCALLS
#define fsysdep_catch() (TRUE)
#define usysdep_start_catch()
#define usysdep_end_catch()
#else /* HAVE_RESTARTABLE_SYSCALLS */
#if HAVE_SETRET && ! HAVE_SIGSETJMP
#else /* ! HAVE_SETRET || HAVE_SIGSETJMP */
#define setjmp(s) sigsetjmp ((s), TRUE)
#define longjmp siglongjmp
#define jmp_buf sigjmp_buf
#endif /* HAVE_SIGSETJMP */
#endif /* ! HAVE_SETRET || HAVE_SIGSETJMP */
extern volatile sig_atomic_t fSjmp;
extern volatile jmp_buf sSjmp_buf;
#define fsysdep_catch() (setjmp (sSjmp_buf) == 0)
#define usysdep_start_catch() (fSjmp = TRUE)
#define usysdep_end_catch() (fSjmp = FALSE)
#define CATCH_PROTECT volatile
#endif /* HAVE_RESTARTABLE_SYSCALLS */
/* Get definitions for the terminal driver. */
typedef struct sgttyb sterminal;
#define fgetterminfo(o, q) (ioctl ((o), TIOCGETP, (q)) == 0)
#define fsetterminfo(o, q) (ioctl ((o), TIOCSETN, (q)) == 0)
#define fsetterminfodrain(o, q) (ioctl ((o), TIOCSETP, (q)) == 0)
#endif /* HAVE_BSD_TTY */
typedef struct termio sterminal;
#define fgetterminfo(o, q) (ioctl ((o), TCGETA, (q)) == 0)
#define fsetterminfo(o, q) (ioctl ((o), TCSETA, (q)) == 0)
#define fsetterminfodrain(o, q) (ioctl ((o), TCSETAW, (q)) == 0)
#endif /* HAVE_SYSV_TERMIO */
typedef struct termios sterminal;
#define fgetterminfo(o, q) (tcgetattr ((o), (q)) == 0)
#define fsetterminfo(o, q) (tcsetattr ((o), TCSANOW, (q)) == 0)
#define fsetterminfodrain(o, q) (tcsetattr ((o), TCSADRAIN, (q)) == 0)
/* On some systems it is not possible to include both <sys/ioctl.h>
and <termios.h> in the same source files; I don't really know why.
On such systems, we pretend that we don't have <sys/ioctl.h>. */
#if ! HAVE_TERMIOS_AND_SYS_IOCTL_H
#define HAVE_SYS_IOCTL_H 0
#endif /* HAVE_POSIX_TERMIOS */
/* The root directory (this is needed by the system independent stuff
as the default for local-send). */
/* The name of the execution directory within the spool directory
(this is need by the system independent uuxqt.c). */
/* The name of the directory in which we preserve file transfers that
#define PRESERVEDIR ".Preserve"
/* The names of the configuration files. These are appended to
NEWCONFIGLIB which is defined in Makefile. */
#define CONFIGFILE "/config"
#define PASSWDFILE "/passwd"
#define DIALCODEFILE "/dialcode"
#endif /* HAVE_TAYLOR_CONFIG */
/* The names of the various V2 configuration files. These are
appended to OLDCONFIGLIB which is defined in Makefile. */
#define V2_SYSTEMS "/L.sys"
#define V2_DEVICES "/L-devices"
#define V2_USERFILE "/USERFILE"
#define V2_CMDS "/L.cmds"
#define V2_DIALCODES "/L-dialcodes"
#endif /* HAVE_V2_CONFIG */
/* The names of the BNU configuration files. These are appended to
OLDCONFIGLIB which is defined in Makefile. */
#define BNU_SYSFILES "/Sysfiles"
#define BNU_SYSTEMS "/Systems"
#define BNU_PERMISSIONS "/Permissions"
#define BNU_DIALERS "/Dialers"
#define BNU_DEVICES "/Devices"
#define BNU_PERMISSIONS "/Permissions"
#define BNU_DIALCODES "/Dialcodes"
#define BNU_MAXUUXQTS "/Maxuuxqts"
#endif /* HAVE_BNU_CONFIG */
/* Get some standard definitions. */
/* Get definitions for the file permission bits. */
#endif /* ! defined (S_IRUSR) */
#define S_ISDIR(i) (((i) & S_IFMT) == S_IFDIR)
#else /* ! defined (S_IFDIR) */
#define S_ISDIR(i) (((i) & 0170000) == 040000)
#endif /* ! defined (S_IFDIR) */
#endif /* ! defined (S_ISDIR) */
/* We create files with these modes (should this be configurable?). */
#define IPRIVATE_FILE_MODE (S_IRUSR | S_IWUSR)
#define IPUBLIC_FILE_MODE (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
/* We create directories with this mode (should this be configurable?). */
#define IDIRECTORY_MODE (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)
#define IPUBLIC_DIRECTORY_MODE (S_IRWXU | S_IRWXG | S_IRWXO)
/* Define some structures to use if we don't have opendir, etc. These
will only work if we have the old Unix filesystem, with a 2 byte
inode and a 14 byte filename. */
extern DIR *opendir P((const char *zdir));
extern struct dirent *readdir P((DIR *));
extern int closedir P((DIR *));
#endif /* ! HAVE_OPENDIR */
/* Information we need for a UNIX serial port. */
struct ssysdep_serial_port
/* File descriptor to read from. */
/* Whether the read descriptor is blocking. */
/* File descriptor to write to. */
/* Whether the write descriptor is blocking. */
/* Whether setting the read descriptor to blocking affects the write
descriptor and vice-versa. */
/* Hold the real read descriptor when using a dialer device. */
/* Hold the real write descriptor when using a dialer device. */
/* TRUE if this is a terminal and the remaining fields are valid. */
/* Original terminal settings. */
/* New terminal settings (raw mode, etc.). */
/* Information we need for a UNIX stdin port. */
struct ssysdep_stdin_port
struct ssysdep_serial_port s;
/* For debugging it is helpful to know whether we are connected
through a pty; the fsserial_read routine uses this information to
know whether to sleep or not. */
#define SYSDEP_STDIN_CMDS(s) \
{ "pty", CMDTABTYPE_BOOLEAN, (pointer) &(s).fpty, NULL }
#define SYSDEP_STDIN_INIT(q) ((q)->fpty = FALSE, (q)->s.oread = -1)
/* Information we need for a UNIX modem port. */
struct ssysdep_modem_port
struct ssysdep_serial_port s;
#define SYSDEP_MODEM_INIT(q) ((q)->s.oread = -1)
/* Information we need for a UNIX direct port. */
struct ssysdep_direct_port
struct ssysdep_serial_port s;
#define SYSDEP_DIRECT_INIT(q) ((q)->s.oread = -1)
/* Set a signal handler. */
extern void usset_signal P((int isig, SIGtype (*pfn) P((int)),
boolean fforce, boolean *pfignored));
/* Default signal handler. This sets the appropriate element of the
afSignal array. If system calls are automatically restarted, it
may do a longjmp to an fsysdep_catch. */
extern SIGtype ussignal P((int isig));
/* Try to fork, repeating several times. */
extern pid_t isfork P((void));
/* Spawn a job. Returns the process ID of the spawned job or -1 on
error. The following macros may be passed in aidescs. */
/* Set descriptor to /dev/null. */
/* Set element of aidescs to a pipe for caller to read from. */
#define SPAWN_READ_PIPE (-2)
/* Set element of aidescs to a pipe for caller to write to. */
#define SPAWN_WRITE_PIPE (-3)
extern pid_t isspawn P((const char **pazargs, int *aidescs,
boolean fkeepuid, boolean fkeepenv,
const char *zchdir, boolean fnosigs,
boolean fshell, const char *zpath,
/* Do a form of popen using isspawn. */
extern FILE *espopen P((const char **pazargs, boolean frd,
/* Wait for a particular process to finish, returning the exit status.
The process ID should be pid_t, but we can't put that in a
extern int iswait P((unsigned long ipid, const char *zreport));
extern boolean fsdo_lock P((const char *, boolean fspooldir));
extern boolean fsdo_unlock P((const char *, boolean fspooldir));
/* See whether a directory exists. */
extern boolean fsdirectory_exists P((const char *));
/* Expand a leading tilde to the public directory or a user's home
directory. Each system may have a different public directory, so
the system information must be passed in. */
extern const char *zstilde_expand P((const struct ssysteminfo *qsys,
/* Check access for a particular user name, or NULL to check access
extern boolean fsuser_access P((const struct stat *, int imode,
/* Copy a string to the common static buffer. */
extern const char *zscopy P((const char *z));
/* Prepend a directory to a file name, returning the common static
extern const char *zsappend P((const char *zdir, const char *zfile));
/* Get a temporary file name. */
extern const char *zstemp_file P((const struct ssysteminfo *qsys));
/* Get a jobid from a system and file name. */
extern const char *zsfile_to_jobid P((const struct ssysteminfo *qsys,
/* Get a file name from a jobid. This also returns the associated system
extern const char *zsjobid_to_file P((const char *zid,
/* See whether there is a spool directory for a system. */
extern boolean fsultrix_has_spool P((const char *zsystem));
#endif /* SPOOLDIR_ULTRIX */
/* The working directory from which the program was run (this is set
by usysdep_initialize if called with fgetcwd TRUE). */
#endif /* ! defined (SYSH_UNX_H) */
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